Flipper - the most advanced magnetic aquarium cleaner ever created! Quickly eliminate any algae buildup - now even more effectively! Patented, floating 2-in-1 magnetic aquarium cleaner from Flipper. Dual blades and a cleaning side change function without removing the cleaner from the water. Complete aquarium cleaning without getting your hands wet! An essential tank cleaning tool for aquarists, hobbyists, and professional aquascapers! Designed for glass and acrylic glass up to 24mm thick. Flipper Edge Max: - New design with dual blades for even more efficient cleaning! - Interchangeable stainless steel and plastic blades for removing stubborn algae and scraping more safely near silicone - New 316 stainless steel blade has a more precise edge design for superior scraping properties - Two blades means twice the life of each blade! - New, safe plastic acrylic blades with the option of using a flat or serrated edge - The set includes 2 stainless steel blades and 2 safe plastic acrylic blades - Use your own blades made from unused bank cards or loyalty cards - The cleaner floats on the water surface in case of separation - Ergonomic handle ensures optimal comfort and a quick change of the cleaning side - Made of extremely strong magnets - Cleans even the most stubborn limestone and spot algae Flipper aquarium products offer a full range of accessories for every aquarist. Choose the Flipper model and size that best suits your tank! - Nano Float: aquariums up to 6mm glass thickness - Edge Standard: aquariums up to 12mm glass thickness - Edge Max: aquariums up to 24mm glass thickness Tips for safe and easy turning of the cleaner in the aquarium: - Change sides in a place without strong water flow - Always turn closer to the top edge of the aquarium - Be careful when using the metal blade near the substrate or silicone - Magnets are strong! Be careful not to pinch your fingers! - Do not place Flipper cleaners near cell phones or electrical appliances.